{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/11973"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/11973","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Ground Plane Slot Structures for Isolation of Cosited Microstrip Antennas","abstract":"Ground plane slot structures have been shown to reduce coupling between cosited antennas. Although some such structures have already been reported, no analytical model exists to describe their behavior and there are no design guidelines. In this work, the behavior of reported ground plane structures is used as a clue to obtain generalizable information about such structures' behavior. The structures' scalability and excitation behavior is investigated. Next a circuit model is derived that describes the interaction of microstrip patch antennas with a ground plane slot structure based on mutual admittances between the ground plane slots and the effective slots at the antennas' radiating edges. The circuit model leads to design guidelines for the ground plane slot structure and an approximate relationship between mutual admittances which must be satisfied in order to isolate the antennas. Finally, we present a novel ground plane slot structure that mitigates some of the disadvantages of earlier designs.","abstract_html":"Ground plane slot structures have been shown to reduce coupling between cosited antennas. Although some such structures have already been reported, no analytical model exists to describe their behavior and there are no design guidelines. In this work, the behavior of reported ground plane structures is used as a clue to obtain generalizable information about such structures' behavior. The structures' scalability and excitation behavior is investigated. Next a circuit model is derived that describes the interaction of microstrip patch antennas with a ground plane slot structure based on mutual admittances between the ground plane slots and the effective slots at the antennas' radiating edges. The circuit model leads to design guidelines for the ground plane slot structure and an approximate relationship between mutual admittances which must be satisfied in order to isolate the antennas. Finally, we present a novel ground plane slot structure that mitigates some of the disadvantages of earlier designs.","abstract_has_math":false,"creators":["Kerby, Kiersten C."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical and Computer Engineering","degree_department":null,"school":null,"contributors":["Bernhard, Jennifer T.","Cangellaris, Andreas C.","Carney, Paul S.","Franke, Steven J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2009,"date_issued":"2009-06-01T16:05:01Z","date_published":"2009-06-01T16:05:01Z","updated_at":"2026-07-22T22:24:52Z","subjects":["microstrip antennas","Isolation","slots","transmission line model","mustache"],"languages":[],"rights":["Copyright 2009 Kiersten C. Kerby"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/11973","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Bernhard, Jennifer T.","Cangellaris, Andreas C.","Carney, Paul S.","Franke, Steven J."]},{"key":"dc:creator","label":"Author","values":["Kerby, Kiersten C."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2009-06-01T16:05:01Z","2009-5"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical and Computer Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["microstrip antennas","Isolation","slots","transmission line model","mustache"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2009 Kiersten C. Kerby"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/11973"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ground plane slot structures have been shown to reduce coupling between cosited antennas. Although some such structures have already been reported, no analytical model exists to describe their behavior and there are no design guidelines. In this work, the behavior of reported ground plane structures is used as a clue to obtain generalizable information about such structures' behavior. The structures' scalability and excitation behavior is investigated. Next a circuit model is derived that describes the interaction of microstrip patch antennas with a ground plane slot structure based on mutual admittances between the ground plane slots and the effective slots at the antennas' radiating edges. The circuit model leads to design guidelines for the ground plane slot structure and an approximate relationship between mutual admittances which must be satisfied in order to isolate the antennas. Finally, we present a novel ground plane slot structure that mitigates some of the disadvantages of earlier designs.","Item deposited via ETD process 2009-06-01.","Made available in DSpace on 2009-06-01T16:05:01Z (GMT). No. of bitstreams: 2 license.txt: 4062 bytes, checksum: 541373f4e17bcf8a1bad9437364be496 (MD5) kerby_kiersten.pdf: 10034152 bytes, checksum: 75b204f04cd6ea4bb25a0880a36ef113 (MD5)"]},{"key":"dc:title","label":"Title","values":["Ground Plane Slot Structures for Isolation of Cosited Microstrip Antennas"]}]}],"canonical_facts":{"dc:contributor":["Bernhard, Jennifer T.","Cangellaris, Andreas C.","Carney, Paul S.","Franke, Steven J."],"dc:creator":["Kerby, Kiersten C."],"dc:date":["2009-06-01T16:05:01Z","2009-5"],"dc:description":["Ground plane slot structures have been shown to reduce coupling between cosited antennas. Although some such structures have already been reported, no analytical model exists to describe their behavior and there are no design guidelines. In this work, the behavior of reported ground plane structures is used as a clue to obtain generalizable information about such structures' behavior. The structures' scalability and excitation behavior is investigated. Next a circuit model is derived that describes the interaction of microstrip patch antennas with a ground plane slot structure based on mutual admittances between the ground plane slots and the effective slots at the antennas' radiating edges. The circuit model leads to design guidelines for the ground plane slot structure and an approximate relationship between mutual admittances which must be satisfied in order to isolate the antennas. Finally, we present a novel ground plane slot structure that mitigates some of the disadvantages of earlier designs.","Item deposited via ETD process 2009-06-01.","Made available in DSpace on 2009-06-01T16:05:01Z (GMT). No. of bitstreams: 2 license.txt: 4062 bytes, checksum: 541373f4e17bcf8a1bad9437364be496 (MD5) kerby_kiersten.pdf: 10034152 bytes, checksum: 75b204f04cd6ea4bb25a0880a36ef113 (MD5)"],"dc:identifier":["http://hdl.handle.net/2142/11973"],"dc:rights":["Copyright 2009 Kiersten C. Kerby"],"dc:subject":["microstrip antennas","Isolation","slots","transmission line model","mustache"],"dc:title":["Ground Plane Slot Structures for Isolation of Cosited Microstrip Antennas"],"thesis:degree_discipline":["Electrical and Computer Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:52Z"}